Answers
Answer:
the value of 3-(-2)is=-5
Related Questions
PLEASE HELP! I have been working on this IXL for over 30 minutes and I keep getting the questions wrong. I am not good at graphing and I am really frustrated. Can someone please help?
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y = mx+b
m is the slope of the equation. slope is rise/ run meaning that if a slope is 2, you can also say 2/1. this means you go up 2 squares and to the right 1 point. if the slope is negative, it looks like a downhill and the line falls left to right. if the slope is positive, it looks like uphill and the line falls right to left.
the x is what the slope is multiplied by but isn’t significant in graphing because it’s always just x
the b represents the y intercept. the y axis is the vertical line on the graph. for example if b = 7, then the line goes through 7 on the graph and basically tells us that (0,7) is a point on the line.
for y= x + 7, the slope is 1. that equation is just saying y= 1x+7 but the one is unnecessary usually because it’s implied that the x means 1x
i attached a picture of the graphed lines
For f(x)=3x-9, find f(15)
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f(15)=45-9
f(15)=36
hope this helped :)
PLEASE HELP I WILL GIVE BRANILEST! HELP HELP HELP!!!!!
Answers
Shelby works for 35 hours per week.
Her weekly wage is £302.75
she receives a pay increase of 45p per hour.
work out her new weekly wage.
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Shelby's new weekly wage would be £318.50 if she receives a pay increase of 45p per hour.
What is Shelby's hourly rate based on the weekly wage of £302.75?
Shelby's hourly rate can be determined as her weekly wage divided by the number of hours spent working per week, in essence, the hourly rate is based on the weekly wage and the number of hours since the total weekly wage can as well be determined as the hourly rate multiplied by the number of hours working per week
hourly rate=weekly wage/hours spent working per week
weekly wage=£302.75
hours spent working per week=35
hourly rate=£302.75/35
hourly rate=£8.65
her new hourly rate=£8.65+£0.45
her new hourly rate=£9.10
new weekly wage=35*£9.10
new weekly wage=£318.50
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For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.
Answers
Answer:
pretty sure it's B
Step-by-step explanation:
domain is x numbers and that has all the x numbers in it
The value of domain in the given function is ( -4, 0 , 1, 2).
The value of range in the given function is ( 1, -3, -4 ).
Given,The function {(0,1), (1,-3), (2,-4), (-4,1)}
We have to find ,
Domain and range of the given function .
The domain of a function is the complete set of possible values of the independent variable.
So, The value of domain in the given function is ,
Domain = ( -4, 0, 1, 2 )
And, The range of a function is the complete set of all possible resulting values of they, dependent variable (usually), after we have substituted the domain.
So, The value of range in the given function is
Range = ( 1, -3, -4 )
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solve the equation 9x= 108 x=
Answers
Answer:
x = 12
Step-by-step explanation:
9x = 108
x = 108 ÷ 9
x = 12
Answer:
x = 12
Step-by-step explanation:
9x = 108
x = 108 / 9
x = 12
PLEASE HELP QUICK!!!!! WILL GIVE BRAINIEST!!!!!!!
Answers
Answer:
c
Step-by-step explanation:
in a linear regression model, the variable (or variables) used for predicting or explaining values of the response variable are known as the . it(they) is(are) denoted by x. a. dependent variable b. residual variable c. regression variable d. independent variable
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In a linear regression model, the variable (or variables) used for predicting or explaining values of the response variable are known as the independent variable. It(they) is(are) denoted by x.
The correct answer is an option (d)
For given question,
The variable that researchers are trying to explain or predict is called the
response variable. It is also sometimes called the dependent variable
because it depends on another variable.
The variable which is used to predict the response variable is known as the explanatory variable. It is also called as an independent variable because it does not depend on another variable.
In regression, the order of the variables is very important.
The explanatory variable (or the independent variable) always belongs on the x-axis. The response variable (or the dependent variable) always belongs on the y-axis.
Therefore, in a linear regression model, the variable (or variables) used for predicting or explaining values of the response variable are known as the independent variable. It(they) is(are) denoted by x.
The correct answer is an option (d)
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Help...........Me.........Please......
Answers
Answer:
ONE
Step-by-step explanation:
Answer:
8. y = -4
Step-by-step explanation:
2 ( -2y - 6 ) + 10 = -4y + 22 + 6y
-4y - 12 + 10 = -4y + 22 + 6y
-6y = 12 - 10 + 22
-6y = 24
y = -4
How long is a distance of 8km if measured on a map with a scale of 1;50,000
Answers
0.00016 is the distance of 8km if measured on a map with a scale of 1;50,000
Since the problem is in proportion, we can write it as an equation
like this,
1/50,000 = x/8
From here on we will cross-multiply
1/50,000 = x/8
50,000x = 8
x = 8/50,000
x = 0.00016
What is cross multiplication?
The cross multiplication method is used to solve linear equations with two variables. The method of cross-multiplication is the simplest and most straightforward way of solving linear equations in two variables. When we have a pair of variables in a linear equation, we apply this strategy.
The procedure of multiplying two fractions, p/q and r/t, by each other is known as cross multiplying or cross-multiplication. For example, p/q and r/t are two fractions that can be cross multiplied by multiplying p t and q r
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What is the product of -5 and 8?
-40
-13
13
40
Answers
Answer:
-40
Step-by-step explanation:
Negative × positive = negative-5 × 8 = -40I hope this helps!
el cuadruple de un numero es igual a 24
Answers
Answer:
6
Step-by-step explanation:
24/4=6
Pls last one and I’ll finally be able to sleep someone pls make sure it’s right
Answers
Answer:
-2/2 = -1/1 = -1
use an appropriate series in (2) in section 6.1 to find the maclaurin series of the given function. write your answer in summation notation. ln(1 − x)
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The Maclaurin series of ln(1 − x) is f(x) = ∑xⁿ⁺¹/(n+1) + c
What is the Maclaurin series?A Maclaurin series is a Taylor series expansion of a function about 0,
f(x) = f(0) + xf'(0) + x²f''(0)/2! + x³f⁽³⁾(0)/3! +.... xⁿf⁽ⁿ⁾(0)/n! ...
We have been the given function
⇒ f(x) = ln(1 − x)
First, let us find the derivative of f(x) for the Maclaurin series,
f'(x) = 1/(1 − x) = 1/(1 − x)
⇒ 1/(1 − x) = 1 + x + x² + x³⋯ = ∑xⁿ if -1< x <1
f'(x) = ∑xⁿ if -1< x <1
By integrating using Power Rule,
⇒ f(x) = ∫∑xⁿ if -1< x <1 = ∑xⁿ⁺¹/(n+1) + c
Since f(0) = ln(1 − 0) = 0
So ln(1 − x) = ∑xⁿ⁺¹/(n+1) + c
Hence, the Maclaurin series of ln(1 − x) is f(x) = ∑xⁿ⁺¹/(n+1) + c
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2. Suppose you are making some soup. You have 7 types vegetables in front of you (one serving of each) and you want to include 4 of them in your soup (each being different). How many ways are there to do this?
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3 different ways to do it.
Using the combination formula, it is found that there are 35 ways to do this.
The order in which the vegetables are included is not important, thus, the combination formula is used to solve this question.
Combination formula:
[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given as follows:
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
In this problem, 4 vegetables from a set of 7, thus:
[tex]C_{7,4} = \frac{7!}{4!(7-4)!} = 35[/tex]
There are 35 ways to do this.
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Simplify: -3(6+8q)+2(-3q+7)
Answers
What is the constant in this situation?
Answers
Why? It says “purchased at a constant price p”
Hope this helps :D
solve the right angle trig problem. round to the nearest tenth.
Answers
Answer:
x ≈ 77.8°
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tan∅ = opposite over adjacentStep-by-step explanation:
Step 1: Define
We are given a right triangle. We can use trig to find the missing angle.
Step 2: Identify Variables
From POV of x
Angle = x
Adjacent = 8
Opposite = 37
Step 3: Solve for x
Substitute: tanx° = 37/8Inverse: x° = tan⁻¹(37/8)Evaluate: x = 77.7995°Round: x ≈ 77.8°Jamaal converted the following conic equation from general form to standard form.
amaal converted the following conic equation from general form to standard form.
4x2 + 4y2 – 16x + 24y – 12 = 0
4x2 – 16x + 4y2 + 24y = 12
4(x2 – 4x) + 4(y2 + 6y) = 12
4(x2 – 4x + 4) + 4(y2 + 6y + 9) = 12 + 4 + 9
4(x – 2)2 + 4(y + 3)2 = 25
Jamaal identifies the center of the circle as
(2, –3) and the radius as r = Five-halves.
What error, if any, did Jamaal make ?
Jamaal misidentified the center. The center should be at the point (–2, 3).
Jamaal did not complete the square correctly; he should have added 16 and 36 inside the parentheses in step 4. The radius is r = StartRoot 55 EndRoot.
Jamaal added 4 and 9 to the right hand side in step 4; he should have added 16 and 36. The radius is r = 8.
Jamaal did not make an error.
Answers
Answer: C. Jamaal added 4 and 9 to the right hand side in step 4; he should have added 16 and 36. The radius is r=8.
Step-by-step explanation: edge 2020, i took one for the team boys :(
In the given conic equation, Jamaal added 16 and 36 on the left hand side. However, he added 4 and 9 on the right hand side. The radius is r = 8.
What is a general conic equation?
Ax² + Bxy + Cy² + Dx + Ey + F = 0, where x, y are variables and A, B, C, D, E, F are constant terms.
Given,
4x² + 4y² – 16x + 24y – 12 = 0
⇒ 4x² – 16x + 4y² + 24y = 12
⇒ 4(x² – 4x) + 4(y² + 6y) = 12
⇒ 4(x² – 4x) + 16 + 4(y² + 6y) + 36 = 12 + 16 + 36
⇒ 4(x² – 4x + 4) + 4(y² + 6y + 9) = 12 + 16 + 36
⇒ 4(x – 2)² + 4(y + 3)² = 64
⇒ 4(x – 2)² + 4(y + 3)² = (8)²
Therefore, the center is at (2, -3) and the radius is r = 8.
Jamaal must have added 16 and 36 on the rest hand side of the conic equation. That's the mistake Jamaal did. As a result, the value of the radius is wrong when Jamaal solved.
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HELP ASP!!!!!!!!!!!!!!!!
Answers
Answer:
Question 1 is C
Step-by-step explanation:
Answer:
a: top right 1 top left 2 bottom left 3 bottom right 4
c: axis going horizontal is the x axis and the axis going vertical is the y axis
d: origin is the very middle and it is (0,0)
Step-by-step explanation:
A furniture store owner buys a sofa for $400 and marks it up %90 to sell it. During the stores anniversary sale she sells the sofa for %25 off. How much profit will the store owner make on the sofa during the anniversary sale?
Answers
Answer:
Anniversary sale price= $570
Step-by-step explanation:
Giving the following information:
Purchase cost= $400
Mar-up percentage= 90%
First, we need to calculate the "normal" selling price:
Selling price= 400*1.9= $760
Now, we can determine the anniversary sale price:
Anniversary sale price= 760 - (760*0.25)= $570
Using the given table of an exponential function, determine the growth/decay factor as well as the rate of increase/decrease. Type your answers in as numbers. Example: Growth Factor: 3.5, Rate of Increase: 2.5. (Do not input your rate of increase as a percent.)
Answers
Answer:
Growth factor is 1.2
Growth rate is 0.2
Step-by-step explanation:
Generally, we can have an exponential function as:
y = a(1 + r)^x
Where a is the initial value (y value when x = 0, which is 10)
r is the growth rate
at x = 2
14.4 = 10(1 + r)^2 •••••(i)
at x = 1
12 = 10(1 + r)^1 •••••(ii)
Divide i by ii
14.4/12 = 1 + r
1.2 = 1 + r
r = 1.2-1
r = 0.2
1 + r = 0.2 + 1 = 1.2
To surprise her cousin, Eliana puts confetti in his birthday card before mailing it. At the post office, she learns that her card is 5 grams too heavy for a common stamp. So, she takes out some of the confetti. If each piece of confetti weighs about 50 milligrams, how many pieces does Eliana need to take out?
Answers
The number of pieces that Eliana need to take out is; 100 pieces
How to carry out Unit Conversions?
From conversion units, we know that 1 gram (g) is equal to 1000 milligrams (mg). Thus; 1 g = 1000 mg
Now, we are told that at the post office, she learns that her card is 5 grams too heavy for a common stamp. So, she takes out some of the confetti.
However, each piece weighs 50 milligrams. Converting to grams gives us; 50/1000 = 0.05 grams
Thus, number of pieces to take out = 5/0.05 = 100 pieces
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Find all the zeros using factor by grouping: x3 + 2x2 + 5x + 10 = 0
Answers
Answer: 3
+
2
x
2
+
5
x
+
10
=
0
x
3
+
2
x
2
+
5
x
+
10
=
0
by solving for
x
x
.
x
=
−
2
,
i
√
5
,
−
i
√
5
Step-by-step explanation:hope this helps sorry it’s weird!
Find the solution(s) of the following equation.
K^2=255
Answers
Answer:
k = 15
Step-by-step explanation:
k² = 225
k = √225
k = 15
Thus, K = 15
-TheUnknownScientist
find the domain of the graphed function.
Answers
Answer:
This should be A. -4 < x < 9.
Step-by-step explanation:
Domains are the x-values. So, you would have to look at the x axis to know your x values. I'm not a 100% sure if this is that correct answer, but here's the answer to what I know.
Answer:
A. -4 ≤ x ≤ 9
General Formulas and Concepts:
Algebra I
Domain is the set of x-values that can be inputted into function f(x)Step-by-step explanation:
According to the line on the graph, our x-values span from -4 to 9. Since both are closed dot, they are both inclusive in the domain:
[-4, 9] or -4 ≤ x ≤ 9
Which ordered pair is the solution of the system graphed?
A~(2,0) B~(8,0)
C~(-3,5) D~(5,-3
Answers
1) Belle works at a donut shop. They sell o box of donut holes for $1.80. There are 20 donut holes in the box. How much does it cost per donut hole? O $0.09 per donut hole O $11 per donut hole O $0.11 per donut hole
Answers
Answer:
.09 cents
Step-by-step explanation:
1.80 divided by 20
1. Rick deposits $3 into his bank account. The following week, he deposits 3 times that amount. Each week after that, he deposits 3 times the amount he did the previous week.
How much does he deposit in all during the first 3 weeks?
2. How much does Rick deposit in all in the first 3 weeks? Show your work.
Answers
Answer:
2 WEEKS 9 DOLLARS
Step-by-step explanation:
EVERY TIME MULTIPLY BY 3 WITH EACH ANSWER
3X1=3
3X3=9
3X9=27
The amount of the money deposited by Rick in 2 weeks is 9 dollars.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Rick deposits $3 into his bank account. The following week, he deposits 3 times that amount. Each week after that, he deposits 3 times the amount he did the previous week.
The amount of money deposited every week is solved as below,
3 X 1 = 3
3 X 3 = 9
3 X 9 = 27
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what's a line segment ray in ur OWN words
If it's from Go.ogle ur answer will be deleted
Answers
Answer:
a line segment is an object with two endpoints , a ray is a part of a line that has no fixed starting point
Step-by-step explanation: